The status of this patch is unknown.
--- graphviz-2.26.3/tclpkg/gv/demo/modgraph.py.orig Wed Jan 2 18:58:18 2008
+++ graphviz-2.26.3/tclpkg/gv/demo/modgraph.py Tue Aug 24 23:48:48 2010
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/python2.7
# display the kernel module dependencies